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Title: Short range, ultra-wideband radar with high resolution swept range gate

Abstract

A radar range finder and hidden object locator is based on ultra-wide band radar with a high resolution swept range gate. The device generates an equivalent time amplitude scan with a typical range of 4 inches to 20 feet, and an analog range resolution as limited by a jitter of on the order of 0.01 inches. A differential sampling receiver is employed to effectively eliminate ringing and other aberrations induced in the receiver by the near proximity of the transmit antenna, so a background subtraction is not needed, simplifying the circuitry while improving performance. Uses of the invention include a replacement of ultrasound devices for fluid level sensing, automotive radar, such as cruise control and parking assistance, hidden object location, such as stud and rebar finding. Also, this technology can be used when positioned over a highway lane to collect vehicle count and speed data for traffic control.

Inventors:
 [1]
  1. Livermore, CA
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
871580
Patent Number(s):
US 5757320
Application Number:
08/769033
Assignee:
Regents of University of California (Oakland, CA)
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
range; ultra-wideband; radar; resolution; swept; gate; finder; hidden; locator; based; ultra-wide; band; device; generates; equivalent; time; amplitude; scan; typical; inches; 20; feet; analog; limited; jitter; 01; differential; sampling; receiver; employed; effectively; eliminate; ringing; aberrations; induced; near; proximity; transmit; antenna; background; subtraction; simplifying; circuitry; improving; performance; replacement; ultrasound; devices; fluid; level; sensing; automotive; cruise; control; parking; assistance; location; stud; rebar; finding; technology; positioned; highway; lane; collect; vehicle; count; speed; data; traffic; range gate; near proximity; swept range; wide band; resolution swept; level sensing; equivalent time; speed data; transmit antenna; sampling receiver; ultra-wideband radar; time amplitude; analog range; amplitude scan; radar range; range resolution; range finder; ultra-wide band; effectively eliminate; improving performance; fluid level; band radar; background subtraction; aberrations induced; eliminate ringing; device generates; differential sampling; typical range; wideband radar; /342/

Citation Formats

McEwan, Thomas E. Short range, ultra-wideband radar with high resolution swept range gate. United States: N. p., 1998. Web.
McEwan, Thomas E. Short range, ultra-wideband radar with high resolution swept range gate. United States.
McEwan, Thomas E. Tue . "Short range, ultra-wideband radar with high resolution swept range gate". United States. https://www.osti.gov/servlets/purl/871580.
@article{osti_871580,
title = {Short range, ultra-wideband radar with high resolution swept range gate},
author = {McEwan, Thomas E},
abstractNote = {A radar range finder and hidden object locator is based on ultra-wide band radar with a high resolution swept range gate. The device generates an equivalent time amplitude scan with a typical range of 4 inches to 20 feet, and an analog range resolution as limited by a jitter of on the order of 0.01 inches. A differential sampling receiver is employed to effectively eliminate ringing and other aberrations induced in the receiver by the near proximity of the transmit antenna, so a background subtraction is not needed, simplifying the circuitry while improving performance. Uses of the invention include a replacement of ultrasound devices for fluid level sensing, automotive radar, such as cruise control and parking assistance, hidden object location, such as stud and rebar finding. Also, this technology can be used when positioned over a highway lane to collect vehicle count and speed data for traffic control.},
doi = {},
url = {https://www.osti.gov/biblio/871580}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {5}
}

Patent:

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